Le Creuset Replacement Knob - Large Phenolic
You found it... the elusive replacement knob!

The enhanced composite knob on the current range is larger for a better grip, with increased heat resistance up to 500ºF.

Round French Oven: 4½ qt., 5½ qt., 7¼ qt., 9 qt., 13¼ qt.
Oval French Oven: 5 qt., 6¾ qt., 9½ qt.
Goose Pot: 15½ qt.